A period of time in which a crew member must be available to fly or perform any duty without an intervening rest period is known as what?

A period of time in which a crew member must be available to fly or perform any duty without an intervening rest period is known as what?

• A. Standby
• B. FDP
• C. Duty Period
• D. Flight Time

Answer: (A)

The concept being tested is standby: a period when a crew member must be available to fly or perform any duty on short notice, with no guaranteed rest before being called. Standby is about being on-call and ready to respond, not about actively operating a flight during that time. In contrast, a flight duty period is a defined block of time when you are on duty and may fly, starting when you report and ending when you’re released. A duty period is the broader on‑duty window that can include various tasks, not just being on standby. Flight time is simply the actual time spent flying, not the readiness to be called. So the description fits standby best.

The concept being tested is standby: a period when a crew member must be available to fly or perform any duty on short notice, with no guaranteed rest before being called. Standby is about being on-call and ready to respond, not about actively operating a flight during that time. In contrast, a flight duty period is a defined block of time when you are on duty and may fly, starting when you report and ending when you’re released. A duty period is the broader on‑duty window that can include various tasks, not just being on standby. Flight time is simply the actual time spent flying, not the readiness to be called. So the description fits standby best.